Re: queue_work from interrupt Real timepreemption2.6.11-rc2-RT-V0.7.37-03

[David S. Miller]

On Wed, 16 Feb 2005 06:16:45 +0100
Ingo Molnar <mingo@xxxxxxx> wrote:


> Maybe the networking
> stack would break if we allowed the TIMER softirq (thread) to preempt
> the NET softirq (threads) (and vice versa)?

The major assumption is that softirq's run indivisibly per-cpu.
Otherwise the per-cpu queues of RX and TX packet work would
get corrupted.

See net/core/dev.c:softnet_data
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